US6290300B1 - Adjustable arm chair bracket - Google Patents

Adjustable arm chair bracket Download PDF

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Publication number
US6290300B1
US6290300B1 US09/516,893 US51689300A US6290300B1 US 6290300 B1 US6290300 B1 US 6290300B1 US 51689300 A US51689300 A US 51689300A US 6290300 B1 US6290300 B1 US 6290300B1
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United States
Prior art keywords
arm
rest
chair
arm rest
vertical fastener
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Expired - Fee Related
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US09/516,893
Inventor
Donald E. Sutton
Douglas A. Learned
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/543—Supports for the arms movable to inoperative position
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A47C1/0308—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests adjustable by rotation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A47C7/541—Supports for the arms of adjustable type

Definitions

  • This invention relates, in general, to arm chair brackets, and, in particular, to an adjustable arm chair bracket.
  • U.S. Pat. No. 5,839,786 to Cvek discloses an arm rest which is rotatably attached to an arm of a chair, and the arm rest can be pivoted to a plurality of locations.
  • U.S. Pat. No. 5,484,187 to Doerner et al discloses a three part bracket which allow a rotatable arm rest to be attached to a chair arm.
  • U.S. Pat. No. 5,641,203 to Van De Riet et al discloses an adjustable arm rest assembly pivotably attached to an arm rest of a chair and which has detents to lock the assembly in a plurality of positions.
  • U.S. Pat. No. 5,407,249 to Bonutti discloses a pivotably mounted arm rest which can be locked in a plurality of positions.
  • U.S. Pat. No. 5,380,065 to Rohrer discloses a three part bracket which allows an arm rest to be pivotably mounted on a chair arm.
  • the present invention is directed to an adjustable arm chair bracket which will attach a chair arm rest to a chair.
  • the arm rest can then be adjusted to suit individuals of different sizes.
  • the bracket has three arms, one of which is connected to the chair, the second has the arm rest attached thereto, and the third arm connects the first and second arm.
  • Spring biased ball detents are used to lock the bracket in various positions to adjust the bracket to the convenience of different users.
  • FIG. 1 is perspective view of the present invention attached to the arm rest of a chair.
  • FIG. 2 is a partial side view of the adjustable locking mechanism of the present invention.
  • FIG. 3 is a side view of the adjustable bracket of the present invention.
  • FIG. 1 shows the present invention 1 attached to a chair with a back rest 3 and a seat portion 2 .
  • the adjustable bracket of the present invention is attached to a vertical arm rest support 4 secured to the chair seat 2 in any conventional manner such as, but not limited to, screws or bolts.
  • the bracket of the present invention comprises at least two arms, although three arms 5 , 6 , 7 (shown in FIGS. 1 and 3) are preferred, which can be made from any suitable material with solid machined aluminum being the preferred material.
  • the arm 5 is attached to the top of the vertical arm rest support 4 in any conventional manner such as by screws or bolts.
  • the arm 5 is secured to the arm 6 by means of a pivot pin as shown in FIG. 2 .
  • the pivot pin comprises three sections 9 , 10 , 15 .
  • the top section 9 will overlie the top of the arm 6 , as shown in FIG. 3, to prevent the arm from being detached.
  • the middle section 10 of the pivot pin will fit within a recess or aperture 16 shown in dotted lines in FIG. 3 .
  • the bottom section 15 will be rotatably secured to the arm 5 in any conventional manner so it can rotate 360° with respect to the arm 5 .
  • the center section 10 of the pivot pin has a plurality of recesses 11 spaced around the periphery of this center section 10 .
  • a locking means Secured within an adjacent recess in the arm 6 is a locking means which will cooperate with the spaced recesses 11 to hold the arms 5 , 6 in any relative position with respect to each other.
  • the recess in the arm 6 contains a holder 13 which houses a spring 14 .
  • the spring 14 biases a ball 12 toward the center pivot pin section 10 .
  • the ball 12 aligns with one of the recesses 11
  • the ball will be biased into the recess by the spring 14 , and this will lock the relative positions of the two arms 5 , 6 . Therefore, the user can adjust the relative position of the bracket arms 5 , 6 to a position that is most comfortable to the user, and once the user has the bracket arms 5 , 6 is the preferred position, the ball detent 12 cooperating with the recesses 11 will hold the bracket arms 5 , 6 in this position.
  • a third arm 7 is attached to the arm 6 in the same manner as the arm 6 is attached to the arm 5 (i.e. by means of a pivot pin as shown in FIG. 2 ).
  • the arm 7 can be adjusted with respect to the arm 6 in the same easy, convenient manner as described above with respect to the adjustment between the arms 5 , 6 .
  • the addition of the third arm 7 offers the user greater versatility with respect to the position that the arm rest is placed into, and this translates into a chair which will be more comfortable to use, whether it is being used by a single person or more a plurality of persons. Again, this ease in adjusting the arm rest means that a person will avoid fatigue (which results in mistakes and errors) and that different people can use the same chair and easily adjust the chair to their individual requirements.
  • a polyurethane arm pad 8 can be attached to the arm bracket 7 in any conventional manner such as by bolts 17 which thread into recesses 18 in the underside of the pad 8 . Since this is a conventional attachment means for an arm rest pad no further description is necessary. Also, the type of material that the pad 8 is made from can be varied without departing from the scope of the invention.

Abstract

An adjustable arm chair bracket which will attach a chair arm rest to a chair. The arm rest can then be adjusted to suit individuals of different sizes. The bracket has three arms, one of which is connected to the chair, the second has the arm rest attached thereto, and the third arm connects the first and second arm. Spring biased ball detents are used to lock the bracket in various positions to adjust the bracket to the convenience of different users.

Description

This is a conversion of Provisional application Ser. No. 60/123,076, filed Mar. 4,1999.
BACKGROUND OF THE INVENTION
This invention relates, in general, to arm chair brackets, and, in particular, to an adjustable arm chair bracket.
DESCRIPTION OF THE PRIOR ART
In the prior art various types of arm chair brackets have been proposed. For example, U.S. Pat. No. 5,839,786 to Cvek discloses an arm rest which is rotatably attached to an arm of a chair, and the arm rest can be pivoted to a plurality of locations.
U.S. Pat. No. 5,484,187 to Doerner et al discloses a three part bracket which allow a rotatable arm rest to be attached to a chair arm.
U.S. Pat. No. 5,641,203 to Van De Riet et al discloses an adjustable arm rest assembly pivotably attached to an arm rest of a chair and which has detents to lock the assembly in a plurality of positions.
U.S. Pat. No. 5,407,249 to Bonutti discloses a pivotably mounted arm rest which can be locked in a plurality of positions.
U.S. Pat. No. 5,380,065 to Rohrer discloses a three part bracket which allows an arm rest to be pivotably mounted on a chair arm.
SUMMARY OF THE INVENTION
The present invention is directed to an adjustable arm chair bracket which will attach a chair arm rest to a chair. The arm rest can then be adjusted to suit individuals of different sizes. The bracket has three arms, one of which is connected to the chair, the second has the arm rest attached thereto, and the third arm connects the first and second arm. Spring biased ball detents are used to lock the bracket in various positions to adjust the bracket to the convenience of different users.
It is an object of the present invention to provide a new and improved adjustable arm rest bracket for a chair.
It is an object of the present invention to provide a new and improved adjustable arm rest bracket that can be easily adjusted to the convenience of different users.
It is an object of the present invention to provide a new and improved adjustable arm rest bracket that can be attached to a variety of chairs.
These and other objects and advantages of the present invention will be fully apparent from the following description, when taken in connection with the annexed drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is perspective view of the present invention attached to the arm rest of a chair.
FIG. 2 is a partial side view of the adjustable locking mechanism of the present invention.
FIG. 3 is a side view of the adjustable bracket of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings in greater detail, FIG. 1 shows the present invention 1 attached to a chair with a back rest 3 and a seat portion 2. The adjustable bracket of the present invention is attached to a vertical arm rest support 4 secured to the chair seat 2 in any conventional manner such as, but not limited to, screws or bolts.
The bracket of the present invention comprises at least two arms, although three arms 5, 6, 7 (shown in FIGS. 1 and 3) are preferred, which can be made from any suitable material with solid machined aluminum being the preferred material. The arm 5 is attached to the top of the vertical arm rest support 4 in any conventional manner such as by screws or bolts. The arm 5 is secured to the arm 6 by means of a pivot pin as shown in FIG. 2.
The pivot pin comprises three sections 9, 10, 15. The top section 9 will overlie the top of the arm 6, as shown in FIG. 3, to prevent the arm from being detached. The middle section 10 of the pivot pin will fit within a recess or aperture 16 shown in dotted lines in FIG. 3. The bottom section 15 will be rotatably secured to the arm 5 in any conventional manner so it can rotate 360° with respect to the arm 5.
As more clearly shown in FIG. 2, the center section 10 of the pivot pin has a plurality of recesses 11 spaced around the periphery of this center section 10. There are 24 recesses 11 spaced at 15° around center section 10, although the number of recesses and the spacing of the recesses can be varied without departing from the scope of the invention. Secured within an adjacent recess in the arm 6 is a locking means which will cooperate with the spaced recesses 11 to hold the arms 5, 6 in any relative position with respect to each other.
The recess in the arm 6 contains a holder 13 which houses a spring 14. The spring 14 biases a ball 12 toward the center pivot pin section 10. When the ball 12 aligns with one of the recesses 11, the ball will be biased into the recess by the spring 14, and this will lock the relative positions of the two arms 5, 6. Therefore, the user can adjust the relative position of the bracket arms 5, 6 to a position that is most comfortable to the user, and once the user has the bracket arms 5, 6 is the preferred position, the ball detent 12 cooperating with the recesses 11 will hold the bracket arms 5, 6 in this position.
Therefore, by merely rotating arm 5 with respect to arm 6, different users can adjust the entire arm rest on the chair to a position that is comfortable to them. In addition, the same user can easily adjust the arm rest, at different times of the day as fatigue sets in. In this way a user can adjust the arm rest easily and conveniently during the day to avoid fatigue, which leads to poor work habits and errors. Because the arms are extremely easy to adjust (there are no locking pins or adjustment screws to manipulate to adjust the arm rest) a user is more likely to adjust the arm rest bracket as the need arises, and therefore, avoid a poorly adjusted arm rest.
A third arm 7 is attached to the arm 6 in the same manner as the arm 6 is attached to the arm 5 (i.e. by means of a pivot pin as shown in FIG. 2). The arm 7 can be adjusted with respect to the arm 6 in the same easy, convenient manner as described above with respect to the adjustment between the arms 5, 6. The addition of the third arm 7 offers the user greater versatility with respect to the position that the arm rest is placed into, and this translates into a chair which will be more comfortable to use, whether it is being used by a single person or more a plurality of persons. Again, this ease in adjusting the arm rest means that a person will avoid fatigue (which results in mistakes and errors) and that different people can use the same chair and easily adjust the chair to their individual requirements.
As shown in FIGS. 1 and 3, a polyurethane arm pad 8 can be attached to the arm bracket 7 in any conventional manner such as by bolts 17 which thread into recesses 18 in the underside of the pad 8. Since this is a conventional attachment means for an arm rest pad no further description is necessary. Also, the type of material that the pad 8 is made from can be varied without departing from the scope of the invention.
It should be noted that while the present invention has been described with three arm brackets 5, 6, 7, it should be noted that it could use two arm brackets or more than three, however, three arm brackets are the preferred number to offer the user the proper amount of versatility in positioning the arm rest in the comfortable fashion.
Although the Adjustoyou Arm Chair Bracket and the method of using the same according to the present invention has been described in the foregoing specification with considerable details, it is to be understood that modifications may be made to the invention which do not exceed the scope of the appended claims and modified forms of the present invention done by others skilled in the art to which the invention pertains will be considered infringements of this invention when those modified forms fall within the claimed scope of this invention.

Claims (12)

What is claimed is:
1. An adjustable arm rest adapted to be attached to a chair arm rest, said adjustable arm rest comprising:
a first arm having means for rotatably connecting said first arm to said chair arm rest,
a second arm rotatably connected to said first arm at a distance spaced from said means for rotatably connecting said first arm to said chair arm rest,
said means for rotatably connecting said first arm to said chair arm rest comprising a vertical fastener extending through said first arm and having means for securing said vertical fastener to said chair arm rest,
means in said first arm cooperating with means in said vertical fastener for adjustably securing said first arm with respect to said vertical fastener, and
thereby adjustably securing said first arm with respect to said chair arm rest, and
wherein said second arm has means for rotatably connecting said second arm to said first arm,
said means for rotatably connecting said second arm to said first arm comprising a second vertical fastener extending through said second arm and having means for securing said second vertical fastener to said first arm,
means in said second arm cooperating with means in said second vertical fastener for adjustably securing said second arm with respect to said second vertical fastener, and
thereby adjustably securing said second arm with respect to said first arm.
2. The adjustable arm rest as claimed in claim 1, wherein said means for rotatably connecting said first arm to said chair arm rest operates independently from said means for rotatably connecting said first arm to said second arm.
3. The adjustable arm rest as claimed in claim 1, wherein said means in said second arm which cooperates with means in said second vertical fastener for adjustably securing said second arm with respect to said second vertical fastener is a plurality of apertures.
4. The adjustable arm rest as claimed in claim 3, wherein said plurality of apertures extend completely around a circumference of said second vertical fastener.
5. The adjustable arm rest as claimed in claim 1, wherein said means in said first arm which cooperates with means in said vertical fastener for adjustably securing said first arm with respect to said vertical fastener is a plurality of apertures.
6. The adjustable arm rest as claimed in claim 5, wherein said plurality of apertures extend completely around a circumference of said vertical fastener.
7. The adjustable arm rest as claimed in claim 1, wherein said means in said first arm cooperating with means in said vertical fastener for adjustably securing said first arm with respect to said vertical fastener is a movable projection.
8. The adjustable arm rest as claimed in claim 7, wherein said movable projection is spring biased.
9. The adjustable arm rest as claimed in claim 7, wherein said movable projection is a ball.
10. The adjustable arm rest as claimed in claim 1, wherein said means in said second arm cooperating with means in said second vertical fastener for adjustably securing said second arm with respect to said second vertical fastener is a second movable projection.
11. The adjustable arm rest as claimed in claim 10, wherein said second movable projection is spring biased.
12. The adjustable arm rest as claimed in claim 10, wherein said second movable projection is a ball.
US09/516,893 1999-03-04 2000-03-02 Adjustable arm chair bracket Expired - Fee Related US6290300B1 (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040183355A1 (en) * 2001-06-20 2004-09-23 Soon-Won Lee Armrest apparatus installed in chair for computer work
US20060103221A1 (en) * 2004-10-08 2006-05-18 Ronald Kleist Ergonomic chair
US20060208552A1 (en) * 2005-03-18 2006-09-21 Broda Enterprises, Inc. Laterally adjustable armrest assembly
WO2006108628A1 (en) 2005-04-13 2006-10-19 Bock1 Gmbh & Co. Kg Arm rest, especially for an office chair
US20070052275A1 (en) * 2005-08-23 2007-03-08 Waheed Ghilzai Modular ergonomic chair
US20070284930A1 (en) * 2006-06-09 2007-12-13 Christianson Nicholas M Chair having removable back or seat cushion assemblies and methods related thereto
US7452032B1 (en) * 2005-09-27 2008-11-18 Earthlite Massage Tables, Inc. Armrest assembly for a resting device
US8991849B2 (en) 2010-10-06 2015-03-31 Medline Industries, Inc. Sliding arm mechanism for wheelchairs
US9044098B2 (en) 2012-11-16 2015-06-02 Holland Plastics Corporation Adjustable armrest assembly
US20150298587A1 (en) * 2014-04-17 2015-10-22 Hni Technologies Inc. Armrest
US9320360B2 (en) 2012-12-14 2016-04-26 Holland Plastics Corporation Armrest assembly
US10104972B2 (en) * 2014-03-29 2018-10-23 Recaro Aircraft Seating Gmbh & Co. Kg Shared armrest
US20180325261A1 (en) * 2017-05-15 2018-11-15 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US10264884B2 (en) * 2014-08-18 2019-04-23 Aaron DeJule Sitting apparatus
US10279717B2 (en) * 2016-07-21 2019-05-07 Faurecia Automotive Seating, Llc Armrest
US20200384902A1 (en) * 2019-06-10 2020-12-10 Toyota Jidosha Kabushiki Kaisha Handrail structure
WO2022018645A1 (en) * 2020-07-22 2022-01-27 Formway Furniture Limited Arm assembly for a chair

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5380065A (en) 1993-12-22 1995-01-10 Reimers Furniture Mfg., Inc. Mechanical linkage for an arm rest
US5407249A (en) 1990-10-15 1995-04-18 Bonutti; Peter M. Armrest assembly
US5484187A (en) 1994-04-11 1996-01-16 Doerner Products Ltd. Chair armrest adjustment mechanism
US5641203A (en) 1995-06-07 1997-06-24 Herman Miller Inc. Adjustable arm rest assembly
US5839786A (en) 1997-06-06 1998-11-24 Stylex, Inc. Adjustable armrest
US5884976A (en) * 1998-02-06 1999-03-23 Nightingale Inc. Chair swivel arm rest
US5975640A (en) * 1997-08-22 1999-11-02 Chen; Chao Ken Adjustable armrest of an office chair
US6017091A (en) * 1999-03-04 2000-01-25 Cao; Zi-Wen Adjustable armrest assembly
US6045191A (en) * 1997-05-28 2000-04-04 Desital Holland B.V. Arm-rest for a chair and a chair comprising this arm-rest
US6076891A (en) * 1997-11-17 2000-06-20 Bernhardt; Sean E. Dual-pivot multi-position ratcheting chair arm

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5407249A (en) 1990-10-15 1995-04-18 Bonutti; Peter M. Armrest assembly
US5380065A (en) 1993-12-22 1995-01-10 Reimers Furniture Mfg., Inc. Mechanical linkage for an arm rest
US5484187A (en) 1994-04-11 1996-01-16 Doerner Products Ltd. Chair armrest adjustment mechanism
US5641203A (en) 1995-06-07 1997-06-24 Herman Miller Inc. Adjustable arm rest assembly
US6045191A (en) * 1997-05-28 2000-04-04 Desital Holland B.V. Arm-rest for a chair and a chair comprising this arm-rest
US5839786A (en) 1997-06-06 1998-11-24 Stylex, Inc. Adjustable armrest
US5975640A (en) * 1997-08-22 1999-11-02 Chen; Chao Ken Adjustable armrest of an office chair
US6076891A (en) * 1997-11-17 2000-06-20 Bernhardt; Sean E. Dual-pivot multi-position ratcheting chair arm
US5884976A (en) * 1998-02-06 1999-03-23 Nightingale Inc. Chair swivel arm rest
US6017091A (en) * 1999-03-04 2000-01-25 Cao; Zi-Wen Adjustable armrest assembly

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843534B2 (en) * 2001-06-20 2005-01-18 Jong-ho Lee Armrest apparatus installed in chair for computer work
US20040183355A1 (en) * 2001-06-20 2004-09-23 Soon-Won Lee Armrest apparatus installed in chair for computer work
US20060103221A1 (en) * 2004-10-08 2006-05-18 Ronald Kleist Ergonomic chair
US20060208552A1 (en) * 2005-03-18 2006-09-21 Broda Enterprises, Inc. Laterally adjustable armrest assembly
US7837269B2 (en) 2005-04-13 2010-11-23 Bock1 Gmbh & Co. Kg Armrest, in particular for an office chair
WO2006108628A1 (en) 2005-04-13 2006-10-19 Bock1 Gmbh & Co. Kg Arm rest, especially for an office chair
US20080084103A1 (en) * 2005-04-13 2008-04-10 Bock 1 Gmbh & Co. Kg Armrest, in Particular for an Office Chair
US20070052275A1 (en) * 2005-08-23 2007-03-08 Waheed Ghilzai Modular ergonomic chair
US20080143164A1 (en) * 2005-08-23 2008-06-19 Waheed Ghilzai Modular ergonomic chair
US7452032B1 (en) * 2005-09-27 2008-11-18 Earthlite Massage Tables, Inc. Armrest assembly for a resting device
US20070284930A1 (en) * 2006-06-09 2007-12-13 Christianson Nicholas M Chair having removable back or seat cushion assemblies and methods related thereto
US9937089B2 (en) 2010-10-06 2018-04-10 Medline Industries, Inc. Sliding arm mechanism for wheelchairs
US8991849B2 (en) 2010-10-06 2015-03-31 Medline Industries, Inc. Sliding arm mechanism for wheelchairs
US10314750B2 (en) 2010-10-06 2019-06-11 Medline Industries, Inc. Sliding arm mechanism for wheelchairs
US9044098B2 (en) 2012-11-16 2015-06-02 Holland Plastics Corporation Adjustable armrest assembly
US9320360B2 (en) 2012-12-14 2016-04-26 Holland Plastics Corporation Armrest assembly
US10104972B2 (en) * 2014-03-29 2018-10-23 Recaro Aircraft Seating Gmbh & Co. Kg Shared armrest
US9592757B2 (en) * 2014-04-17 2017-03-14 Hni Technologies Inc. Armrest
US20150298587A1 (en) * 2014-04-17 2015-10-22 Hni Technologies Inc. Armrest
US10264884B2 (en) * 2014-08-18 2019-04-23 Aaron DeJule Sitting apparatus
US10279717B2 (en) * 2016-07-21 2019-05-07 Faurecia Automotive Seating, Llc Armrest
US20180325261A1 (en) * 2017-05-15 2018-11-15 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US10537176B2 (en) * 2017-05-15 2020-01-21 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US20200384902A1 (en) * 2019-06-10 2020-12-10 Toyota Jidosha Kabushiki Kaisha Handrail structure
US11613190B2 (en) * 2019-06-10 2023-03-28 Toyota Jidosha Kabushiki Kaisha Handrail structure
WO2022018645A1 (en) * 2020-07-22 2022-01-27 Formway Furniture Limited Arm assembly for a chair

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